CVE-2017-16654

Name: CVE-2017-16654
Creator: NVD / NIST
Published: 2018-08-06T21:29:00.33+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.68%

Last modified Jun 17, 2026

CVE-2017-16654 is a vulnerability of currently unknown severity. An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The Intl component includes various bundle readers that are used to read resource bundles from the local filesystem. EPSS estimates a 2.68% chance of exploitation in the next 30 days.

Description

An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The Intl component includes various bundle readers that are used to read resource bundles from the local filesystem. The read() methods of these classes use a path and a locale to determine the language bundle to retrieve. The locale argument value is commonly retrieved from untrusted user input (like a URL parameter). An attacker can use this argument to navigate to arbitrary directories via the dot-dot-slash attack, aka Directory Traversal.

Metrics

EPSS Probability

2.68%

83.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Sensiolabs	Symfony	>= 2.7.0, <= 2.7.37
Sensiolabs	Symfony	>= 3.2.0, <= 3.2.13
Sensiolabs	Symfony	>= 3.3.0, <= 3.3.12
Sensiolabs	Symfony	>= 3.8.0, <= 3.8.30
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://github.com/symfony/symfony/pull/24994Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00009.htmlThird Party Advisory
https://symfony.com/blog/cve-2017-16654-intl-bundle-readers-breaking-out-of-pathsIssue Tracking, Vendor Advisory
https://www.debian.org/security/2018/dsa-4262Third Party Advisory
https://github.com/symfony/symfony/pull/24994Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00009.htmlThird Party Advisory
https://symfony.com/blog/cve-2017-16654-intl-bundle-readers-breaking-out-of-pathsIssue Tracking, Vendor Advisory
https://www.debian.org/security/2018/dsa-4262Third Party Advisory

Timeline

Published: Aug 6, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-16654?

How severe is CVE-2017-16654?

Severity scoring for CVE-2017-16654 is pending analysis. The EPSS model estimates a 2.68% probability of exploitation in the next 30 days.

How do I fix CVE-2017-16654?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-16654?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST